Historic blues musicians from the Mississippi Delta and Clarksdale’s Sunflower River Blues and Gospel Festival that presented Robert Plant and the Sensational Space Shifters were praised before thousands by the super star Saturday night at the Memphis Botantic Gardens concert. Among those attending the After Party following the concert are Priscilla Presley (right) visiting with members of Robert Plant’s band Billy Fuller, Dave Smith, and Sunflower Festival member Laura Mayfield. The tour that kicked off in Clarksdale last summer has traveled to South America, Australia, Singarore, New Zealand, across the U.S.